CN210383150U - Desk and chair convenient to fold - Google Patents

Abstract

The utility model discloses a desk chair convenient to it is folding, including the extension board, four pulleys are fixed respectively and are set up the both ends at two bull sticks, the one end of two spinal branch vaulting poles respectively with the both sides fixed connection of seat bottom, four pivot grooves respectively with the both ends swing joint of two pivots, the middle part of two pivots all is equipped with the connecting rod, the one end of two connecting rods all with one side fixed connection of backup plate, the utility model relates to a desk chair convenient to it is folding sets up gliding seat and backup plate on the extension board, can slide seat and backup plate to extension board one side, reduces the occupation of land volume of desk chair, is convenient for remove, props up the supporting leg simultaneously and the kelly supports the extension board, this desk chair simple structure is convenient for fold, easily the student uses.

Description

Desk and chair convenient to fold

Technical Field

The utility model relates to a desk chair, in particular to a desk chair convenient to fold belongs to desk chair technical field.

Background

The desk is used by students, starts from the eight-side desk in the earliest school hall, is used for schools, and the desks for learning in the school hall are unified into desks, the existing desks are roughly divided into three types, namely solid wood desks: in 2000, most schools use the single desk and the double desk which are processed by the traditional solid wood. The desk is convenient to process, made of miscellaneous wood, wastes a large amount of wood, is not durable, and is still adopted by primary and secondary schools in a plurality of poor areas at present. Because desk bench height is fixed, is replaced by the adjustable desk of steel-plastic structure gradually, goes up and down the desk: the height of the desk and the stool can be adjusted, and the height of the desk is adjusted by adjusting the relative firmware of the desk legs between the sliding shafts up and down, so that the requirements of schools and students are met. The desk is mainly of a steel-plastic structure, the desktop is a melamine plate, the desk legs are steel pipe pieces, and the parts, connected with the ground, of the desk are protected by plastic caps. And a rubber plastic desk: mainly adopts rubber and plastic alloy materials, and is a school desk and chair product formed by mechanical compression molding, and the products are mostly of fixed structures and have unadjustable heights.

However, the height of the desk and chair can be adjusted only by the existing desk, the desk and chair can not be folded, and the desk and chair is very inconvenient to move.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk chair convenient to it is folding to solve the height that nevertheless can only adjust desk chair of current desk that proposes in the above-mentioned background art, can not fold desk chair, when removing the chair, unusual inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a desk chair convenient to it is folding, includes the extension board, two fluting, two have been seted up to one side of extension board the spout, four have all been seted up to the both sides of fluting inner wall the equal sliding connection in inside of spout has the pulley, and four the pulley is fixed the both ends that set up at two bull sticks respectively, two the middle part of bull stick is all overlapped and is equipped with a piece, two the one end of a piece respectively with the both sides fixed connection of seat bottom, two recesses, two have been seted up to one side of seat the pivot groove has all been seted up to the both sides of recess inner wall, four the both ends swing joint with two pivots respectively of pivot groove, two the middle part of pivot is all overlapped and is equipped with the connecting rod, two the one end of connecting rod all with one side.

As a preferred technical scheme of the utility model, two curb plates of the equal fixedly connected with in both sides of extension board bottom, four the equal fixedly connected with supporting legs in bottom of curb plate.

As a preferred technical scheme of the utility model, the both sides at extension board top have all been seted up and have been supported the groove, two the equal fixed mounting in inside of supporting the groove has a bearing, two the inner circle of bearing respectively with one side fixed connection, two of two commentaries on classics the equal fixedly connected with supporting leg of opposite side of piece, two the dashpot has all been seted up, two to the inside of supporting leg the equal fixed mounting in bottom in the dashpot has buffer spring, two the equal fixedly connected with kelly of one end of buffer spring.

As an optimized technical scheme of the utility model, the draw-in groove with kelly matched with is all seted up to the both sides of seat bottom.

As an optimized technical proposal of the utility model, the surface of the support plate is provided with a storage groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a desk chair convenient to it is folding sets up gliding seat and backup plate on the extension board, can slide seat and backup plate to extension board one side, reduces the volume of taking up an area of table chair, and the removal of being convenient for props up supporting leg and kelly simultaneously and supports the extension board, and this desk chair simple structure is convenient for fold, easily student uses.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic structural view of the pulley of the present invention;

FIG. 3 is a schematic structural view of the latch of the present invention;

fig. 4 is a schematic structural view of the accommodating groove of the present invention.

In the figure: 1. a support plate; 2. a side plate; 3. a groove; 4. a connecting rod; 5. a backup plate; 6. a seat plate; 7. rotating the block; 8. a chute; 9. grooving; 10. supporting a block; 11. a rotating rod; 12. a pulley; 13. a buffer spring; 14. supporting legs; 15. a clamping rod; 16. a receiving groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model provides a desk chair convenient to it is folding, including extension board 1, two fluting 9 have been seted up to one side of extension board 1, spout 8 has all been seted up to the both sides of two fluting 9 inner walls, the equal sliding connection in inside of four spout 8 has pulley 12, and four pulley 12 are fixed the both ends that set up at two bull stick 11 respectively, the middle part of two bull stick 11 all is overlapped and is equipped with a piece 10, the one end of two piece 10 respectively with the both sides fixed connection of seat 6 bottom, two recess 3 have been seted up to one side of seat 6, the pivot groove has all been seted up to the both sides of two recess 3 inner walls, the both ends swing joint with two pivots respectively of four pivot grooves, the middle part of two pivots all is overlapped and is equipped with connecting rod 4, the one end of two connecting rods 4 all with one.

Preferably, two side plates 2 are fixedly connected to two sides of the bottom of the support plate 1, supporting legs are fixedly connected to the bottom ends of the four side plates 2, and the supporting legs support the support plate 1.

Preferably, the both sides at extension board 1 top have all been seted up and have been supported the groove, the equal fixed mounting in inside of two support grooves has the bearing, the inner circle of two bearings respectively with one side fixed connection of two commentaries on classics pieces 7, the equal fixedly connected with supporting leg 14 of opposite side of two commentaries on classics pieces 7, the dashpot has all been seted up to the inside of two supporting legs 14, the equal fixed mounting in bottom in two dashpots has buffer spring 13, the equal fixedly connected with kelly 15 of one end of two buffer spring 13, kelly 15 supports seat 6.

Preferably, the clamping grooves matched with the clamping rods 15 are formed in the two sides of the bottom end of the seat plate 6, and the clamping rods 15 are matched with the clamping grooves to support the seat plate 6.

Preferably, the surface of the support plate 1 is provided with a receiving groove 16, and a plurality of textbooks can be placed in the receiving groove 16.

When specifically using, the utility model relates to a desk chair convenient to it is folding, during the use, seat 6 is in the same direction as fluting 9 sliding through pulley 12 of bottom, and slide to the top of extension board 1, rotate and change 7, advance in the draw-in groove of seat 6 bottom with kelly 15 card, support seat 6, and rotate connecting rod 4, drive backup plate 5 and rotate, when needs move the desk chair, fold backup plate 5 to the top with seat 6, and take out the kelly 15 of extension board 1 both sides, slide seat 6 and backup plate 5 in the same direction as fluting 9 to one side of extension board 1, the volume of desk chair has effectively been reduced, be convenient for remove and carry the desk chair.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A desk and chair convenient to fold comprises a support plate (1) and is characterized in that two grooves (9) are formed in one side of the support plate (1), sliding grooves (8) are formed in two sides of the inner wall of the two grooves (9), pulleys (12) are connected inside the four sliding grooves (8) in a sliding mode, the four pulleys (12) are fixedly arranged at two ends of two rotating rods (11) respectively, a supporting block (10) is sleeved in the middle of each rotating rod (11), one end of each supporting block (10) is fixedly connected with two sides of the bottom end of a seat plate (6) respectively, two grooves (3) are formed in one side of the seat plate (6), rotating shaft grooves are formed in two sides of the inner wall of each groove (3), the four rotating shaft grooves are movably connected with two ends of two rotating shafts respectively, a connecting rod (4) is sleeved in the middle of each rotating shaft, one end of each of the two connecting rods (4) is fixedly connected with one side of the backup plate (5).

2. A desk and chair convenient to fold as claimed in claim 1, wherein: two side plates (2) are fixedly connected to two sides of the bottom of the support plate (1), and supporting legs are fixedly connected to the bottom ends of the four side plates (2).

3. A desk and chair convenient to fold as claimed in claim 1, wherein: support groove, two have all been seted up to the both sides at extension board (1) top the equal fixed mounting in inside of support groove has a bearing, two the inner circle of bearing respectively with one side fixed connection of two commentaries on classics piece (7), two the equal fixedly connected with supporting leg (14) of opposite side of commentaries on classics piece (7), two the dashpot has all been seted up to the inside of supporting leg (14), two the equal fixed mounting in bottom in the dashpot has buffer spring (13), two the equal fixedly connected with kelly (15) of one end of buffer spring (13).

4. A desk and chair convenient to fold as claimed in claim 1, wherein: the two sides of the bottom end of the seat plate (6) are provided with clamping grooves matched with the clamping rods (15).

5. A desk and chair convenient to fold as claimed in claim 1, wherein: the surface of the support plate (1) is provided with a containing groove (16).

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